SOAP response get truncated for big payload

Question

We have a legacy SOAP web service , implemented using Apache Axis 1 . At the client environment, the response data sometimes gets truncated on certain API calls causing error. But when tested using SOAP UI client, it returns full data as expected. This behavior can't be locally replicated in our dev environment and happens only at client office. They do have front end proxies and stuff in place to route the request.

We are still using HTTP 1.0 . Will that be causing any issues with a big payload? How much effort will it take to upgrade to HTTP 1.1 ? Will it be a simple header upgrade stating HTTP/1.1 ?

We are already encoding the data using utf-8 on request and response.

Sample SOAP request:

[POST /apixyzCall HTTP/1.0
Content-Type: text/xml; charset=utf-8
Accept: application/soap+xml, application/dime, multipart/related, text/*
User-Agent: Axis/1.1beta
Cache-Control: no-cache
Pragma: no-cache
SOAPAction: "http://abc/SoapManager"
Content-Length: 983

<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"   xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>

PAYLOAD
</soapenv:Body>
</soapenv:Envelope>

]

Any tips?

Answer 1

Turned out the issue was with SSL. The API returns complete data using HTTP, but it truncates response once SSL is enabled. It was closing the connection before the client receives the full response.